The explosive finale of the phenomenal trilogy featuring Eden Archer and Frank Bennett: Eden, a top cop in the Sydney homicide department, is severely shaken after her undercover assignment. However, that doesn't stop her from continuing to do what she does best: tracking down killers and psychopaths during nightly patrols and taking them out of circulation for good. Her colleague Frank suspects her dark secret but remains silent - for now. When a killer brutally murders one jogger after another in the parks of Sydney, the two cops must work together again, come what may. But the situation quickly escalates as Frank's new girlfriend, psychologist Imogen Stone, starts reopening old cases for hefty rewards in her spare time and stumbles upon the twenty-year-old Tanner murders. In her investigations, she gets dangerously close to Eden, far too close.